<?php

/*
 * Tomato Framework
 * 
 * Copyright 2012-2012 Luax.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 * @link http://www.tomatoframework.com
 * @link http://www.luaxlou.com
 * @version $Id: ObjectFactory.class.php 13 2012-03-15 15:35:54Z luaxcn@gmail.com $
 */

/**
 * 
 * 
 * @package tomatoframework
 * @author Luax <luaxcn@gmail.com>
 */
class tomatoframework_ObjectFactory
{

    private static $_instance = null;
    private $objects = array();

    /**
     *
     * @param tomatoframework_ApplicationContext $context 
     */
    private $context;

    /**
     *
     * @return tomatoframework_ObjectFactory 
     */
    public static function instance()
    {
        if (self::$_instance == NULL)
        {
            self::$_instance = new self();
        }


        return self::$_instance;
    }

    public function setApplicationContext(tomatoframework_ApplicationContext $context)
    {
        $this->context = $context;
    }

    private function __construct()
    {
        
    }

    public function factory($id)
    {
        
        $attribute =$this->context->getAttributeOfReferenceObject($id);
        $className = $attribute['classname'];
        $params = $this->context->getParameterOfReferenceObject($id);
        
        if (!isset($this->objects[$id]) || $this->objects[$id] == null)
        {

            $this->objects[$id] = new $className($params);

            if (method_exists($this->objects[$id], 'setApplicationContext'))
            {

                $this->objects[$id]->setApplicationContext($this->context);
            }
            if (method_exists($this->objects[$id], 'getPrototype'))
            {

                $this->objects[$id] = $this->objects[$id]->getPrototype();
            }
        }

        return $this->objects[$id];
    }
 

}

?>